Stadium: Displaymax Court Round: 26 Ground: Clay
| ITF M15 Ueberlingen | 2023/08/16 09:40 | Florig, Philip v Adrian Oetzbach | 2-6,7-5,5-7 |
| Challenger Meerbusch | 2023/08/06 15:45 | Tibo Colson v Adrian Oetzbach | 7-6,7-6 |
| ITF M15 Eindhoven | 2023/08/05 09:00 | Elmer Moller v Adrian Oetzbach | 7-6,6-7,6-7 |
| ITF M15 Eindhoven | 2023/08/04 10:00 | Stijn Paardekooper v Adrian Oetzbach | 3-6,6-3,2-6 |
| ITF M15 Eindhoven | 2023/08/03 09:00 | Jurriaan Bol v Adrian Oetzbach | 3-6,3-6 |
| ITF M15 Eindhoven | 2023/08/02 10:45 | Adrian Oetzbach v Sidane Pontjodikromo | 6-3,6-0 |
| ITF M15 Eindhoven | 2023/08/01 13:50 | Adrian Oetzbach v Jans, Jarno | 6-1,6-0 |
| ITF M15 Metzingen | 2023/07/24 12:00 | Adrian Oetzbach v Aaron James Williams | 6-7,6-2,7-10 |
| ITF M15 Ueberlingen | 2023/08/16 13:50 | Milan Welte v Luca Wiedenmann | 7-5,3-6,4-6 |
| ITF M15 Eupen | 2023/08/11 16:30 | Luca Wiedenmann v Marc Majdandzic | 4-6,7-5,3-6 |
| ITF M15 Eupen | 2023/08/10 09:00 | Luca Wiedenmann v Maik Steiner | 3-6,6-3,6-1 |
| ITF M15 Eupen | 2023/08/09 10:00 | Luca Wiedenmann v Pietro Marino | 6-2,7-5 |
| ITF M25 Wetzlar | 2023/08/04 08:00 | Luca Wiedenmann v Nicola Kuhn | 4-6,4-6 |
| ITF M25 Wetzlar | 2023/08/03 09:15 | Luca Wiedenmann v Max Schoenhaus | 7-5,6-1 |
| ITF M25 Uriage | 2023/07/14 09:20 | Marvin Moeller v Luca Wiedenmann | 7-6,7-6 |
| ITF M25 Uriage | 2023/07/13 11:15 | Luca Wiedenmann v Valerio Aboian | 7-5,6-1 |